clock.h

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#include <linux/clkdev.h>
#include <linux/syscore_ops.h>

struct clkops {
    void            (*enable)(struct clk *);
    void            (*disable)(struct clk *);
    unsigned long       (*getrate)(struct clk *);
    int         (*setrate)(struct clk *, unsigned long);
};

struct clk {
    const struct clkops *ops;
    unsigned long       rate;
    unsigned int        cken;
    unsigned int        delay;
    unsigned int        enabled;
};

void clk_dummy_enable(struct clk *);
void clk_dummy_disable(struct clk *);

extern const struct clkops clk_dummy_ops;
extern struct clk clk_dummy;

#define INIT_CLKREG(_clk,_devname,_conname)     \
    {                       \
        .clk        = _clk,         \
        .dev_id     = _devname,     \
        .con_id     = _conname,     \
    }

#define DEFINE_CK(_name, _cken, _ops)           \
struct clk clk_##_name = {              \
        .ops    = _ops,             \
        .cken   = CKEN_##_cken,         \
    }

#define DEFINE_CLK(_name, _ops, _rate, _delay)      \
struct clk clk_##_name = {              \
        .ops    = _ops,             \
        .rate   = _rate,            \
        .delay  = _delay,           \
    }

#define DEFINE_PXA2_CKEN(_name, _cken, _rate, _delay)   \
struct clk clk_##_name = {              \
        .ops    = &clk_pxa2xx_cken_ops,     \
        .rate   = _rate,            \
        .cken   = CKEN_##_cken,         \
        .delay  = _delay,           \
    }

extern const struct clkops clk_pxa2xx_cken_ops;

void clk_pxa2xx_cken_enable(struct clk *clk);
void clk_pxa2xx_cken_disable(struct clk *clk);

extern struct syscore_ops pxa2xx_clock_syscore_ops;

#if defined(CONFIG_PXA3xx) || defined(CONFIG_PXA95x)
#define DEFINE_PXA3_CKEN(_name, _cken, _rate, _delay)   \
struct clk clk_##_name = {              \
        .ops    = &clk_pxa3xx_cken_ops,     \
        .rate   = _rate,            \
        .cken   = CKEN_##_cken,         \
        .delay  = _delay,           \
    }

extern const struct clkops clk_pxa3xx_cken_ops;
extern const struct clkops clk_pxa3xx_hsio_ops;
extern const struct clkops clk_pxa3xx_ac97_ops;
extern const struct clkops clk_pxa3xx_pout_ops;
extern const struct clkops clk_pxa3xx_smemc_ops;

extern void clk_pxa3xx_cken_enable(struct clk *);
extern void clk_pxa3xx_cken_disable(struct clk *);

extern struct syscore_ops pxa3xx_clock_syscore_ops;

#endif